import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken, removeToken } from '@/utils/auth'
import router from '@/router/index'

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000, // request timeout
  retry: 3
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent
    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['Authorization'] = getToken()
      config.headers['company-id'] = store.getters.defaultCompany.id
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data

    // if the custom code is not 20000, it is judged as an error.
    if (res.code < 200 || res.code > 299) {
      Message({
        message: res.message || 'Error',
        type: 'error',
        duration: 5 * 1000
      })

      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
        // to re-login
        MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
          confirmButtonText: 'Re-Login',
          cancelButtonText: 'Cancel',
          type: 'warning'
        }).then(() => {
          store.dispatch('user/resetToken').then(() => {
            location.reload()
          })
        })
      }
      if (res.code === 401) {
        removeToken()
        location.reload()
      }

      console.log('res.code --------->', res.code)

      if (res.code === 404) {
        // router.push('/404')
      }

      return Promise.reject(new Error(res.message || 'Error'))
    } else {
      return res
    }
  },
  error => {
    console.log('err', error.response) // for debug\

    if (error.code === 'ECONNABORTED' && error.message.indexOf('timeout') !== -1) {
      const redoCount = error.config.headers['X-Retry-Count'] || 0
      if (redoCount < service.defaults.retry) {
        error.config.headers['X-Retry-Count'] = (redoCount || 0) + 1
        if (error.config.url && error.config.url.startsWith('/api')) {
          error.config.url = error.config.url.substr(4)
        }
        return service(error.config)
      } else {
        return Promise.reject(error)
      }
    }

    if (error.response.status === 401) {
      removeToken()
      location.reload()
    }

    if (error.response.status === 404) {
      // router.push('/404')
    }
    // Message({
    //   message: error.message,
    //   type: 'error',
    //   duration: 5 * 1000
    // })
    return Promise.reject(error)
  }
)

export default service
